DIG’s LEIT-2ET wireless, solar powered and weather-based system utilizes evapotranspiration (ET) data and site information to monitor and adjust daily irrigation programming for each zone according to real-time weather information provided locally. The data transmitted from a local weather station hourly and daily, utilizing a radio frequency band, 915MHz NA, 866.5MHz Hong Kong and 868MHz International. Site information provided by the LEIT RC2 ET handset, combined with the weather station data are used by the controller to calculate the daily local micro climate and automatically adjust the daily irrigation schedule.